Two comments:
1. I found it very difficult to see and identify the two top clips that OP suggested could be seen from beneath the assembly. (The two bottom clips are easy to see and find.) Even with the seat on full forward and full up I couldn't find the *!?*()^ things. Had to snap one off--reattached with epoxy--all good.

2. Pull the switch out of the escutcheon before removing connectors--much easier that way. Then reattach connectors to new switch before re-snapping into position on the escutcheon.